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Search took 0.00 seconds. Search: Posts Made By: mmwjr

Forum: Electronics

04-16-2022, 05:11 PM

Replies: 10

New switch key question

Views: 703

Posted By mmwjr

The tach should have 3 wires; purple for power,...

The tach should have 3 wires; purple for power, black for ground and gray for signal from negative terminal of the ignition coil.

Forum: Electronics

04-15-2022, 10:02 PM

Replies: 10

New switch key question

Views: 703

Posted By mmwjr

Frankly that connector looks like something a...

Frankly that connector looks like something a previous owner did and it’s not factory. It may be best to rewire it.

Forum: Electronics

04-14-2022, 08:27 PM

Replies: 10

New switch key question

Views: 703

Posted By mmwjr

The switch wiring would be from Sea Ray but from...

The switch wiring would be from Sea Ray but from what I’ve seen they don’t provide wiring diagrams on small boats. A few pictures might help but black should be 12V negative and won’t go to the...

Forum: Electronics

04-14-2022, 03:50 PM

Replies: 10

New switch key question

Views: 703

Posted By mmwjr

Steve - attached is the Mercruiser wiring harness...

Steve - attached is the Mercruiser wiring harness diagrams, hope this helps.

7117

Forum: Electronics

04-13-2022, 11:49 PM

Replies: 10

New switch key question

Views: 703

Posted By mmwjr

The red wire should be on the B terminal of the...

The red wire should be on the B terminal of the ignition switch and the other end should go to a 15 amp fuse either in line in the harness or in the fuse block, either of which are feed by the red...

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